Mi-T-M HHB Series Owner's manual

Operator's Manual 1

CAUTION

RISK OF INJURY!

READ MANUAL BEFORE OPERATING!

This manual is an important part of the pressure washer and must

remain with the unit when you sell or rent it!

OPERATOR'S MANUAL FOR

HHB and HHS-SERIES

HOT WATER

PRESSURE WASHERS

2 Operator's Manual

TABLE OF CONTENTS

INTRODUCTION .......................................................................................................................3

IMPORTANT SAFETY INSTRUCTIONS .............................................................................. 4-7

RISK OF ELECTRIC SHOCK OR ELECTROCUTION .................................................4

RISK OF EXPLOSION OR FIRE ..................................................................................5

RISK OF ASPHYXIATION ...........................................................................................5

RISK OF INJECTION OR SEVERE CUTTING INJURY ...............................................6

RISK OF BURNS ..........................................................................................................6

RISK OF BURSTING ....................................................................................................6

RISK FROM MOVING PARTS ......................................................................................6

RISK OF BODILY INJURY ............................................................................................7

FEATURES ........................................................................................................................... 8-9

INSTALLATION & PREPARATION .................................................................................. 10-13

ATTIRE .......................................................................................................................10

SETUP ........................................................................................................................10

OPTIONAL STACK ADAPTER-VENTILATION INSTRUCTIONS ...............................10

POWER CORD CONNECTION ..................................................................................11

BURNER FUEL TANK ................................................................................................11

ADJUSTABLE PRESSURE DUAL LANCE .................................................................12

DUAL LANCE CONNECTION ....................................................................................12

WATER SUPPLY .........................................................................................................12

UNLOADER ................................................................................................................12

THERMAL RELIEF VALVE .........................................................................................13

PRE-START INSPECTION PROCEDURES ...............................................................13

OPERATING INSTRUCTIONS ......................................................................................... 14-17

FLUSHING THE SYSTEM ..........................................................................................14

START-UP/COLD WATER OPERATION ....................................................................14

HOT WATER OPERATION .........................................................................................14

OPTIONAL STEAM OPERATION ...............................................................................15

CLEANING WITH DETERGENTS ..............................................................................16

SHUTDOWN ...............................................................................................................17

OPTIONS ....................................................................................................................17

STORAGE & MAINTENANCE .......................................................................................... 18-21

MAINTENANCE CHART .............................................................................................18

DAILY ..........................................................................................................................19

3 MONTHS .................................................................................................................20

6 MONTHS .................................................................................................................21

12 MONTHS ...............................................................................................................21

SEASONAL-WINTERIZING ........................................................................................21

TROUBLESHOOTING ...................................................................................................... 22-24

STATEMENT OF WARRANTY ...............................................................................................25

Warning: This product contains lead, a

chemical known to the State of California

to cause birth defects or other reproductive

harm.

Wash your hands after handling this product.

Operator's Manual 3

INTRODUCTION

Congratulations on the purchase of your new HHS-Series hot water pressure washer! You can be assured your hot

water pressure washer was constructed and designed with quality and performance in mind. Each component has been

rigorously tested to ensure the highest level of acceptance.

This operator's manual was compiled for your benet. By reading and following the simple safety, installation, operation,

maintenance and troubleshooting steps described in this manual, you will receive years of trouble free operation from

your new hot water pressure washer. The contents of this manual are based on the latest product information available

at the time of publication. The manufacturer reserves the right to make changes in price, color, materials, equipment,

specications or models at any time without notice.

! IMPORTANT !

These paragraphs are surrounded by a "SAFETY ALERT BOX". This box is used to designate and

emphasize Safety Warnings that must be followed when operating this pressure washer.

Accompanying the Safety Warnings are "signal words" which designate the degree or level

of hazard seriousness. The "signal words" used in this manual are as follows:

DANGER: Indicates an imminently hazardous situation which, if not avoided, WILL

result in death or serious injury.

WARNING: Indicates a potentially hazardous situation which, if not avoided, COULD

result in death or serious injury.

CAUTION: Indicates a potentially hazardous situation which, if not avoided MAY

result in minor or moderate injury.

The symbols set to the left of this paragraph are "Safety Alert Symbols". These symbols

are used to call attention to items or procedures that could be dangerous to you or other

persons using this equipment.

ALWAYS PROVIDE A COPY OF THIS MANUAL TO ANYONE USING THIS EQUIPMENT. READ

ALL INSTRUCTIONS BEFORE OPERATING THIS PRESSURE WASHER AND ESPECIALLY

POINT OUT THE "SAFETY WARNINGS" TO PREVENT THE POSSIBILITY OF PERSONAL

INJURY TO THE OPERATOR.

Once the unit has been uncrated, immediately write in the serial number of your unit in the space provided below.

SERIAL NUMBER_________________________________

Inspect for signs of obvious or concealed freight damage. If damage does exist, le a claim with the transportation

company immediately. Be sure that all damaged parts are replaced and that the mechanical and electrical problems

are corrected prior to operation of the unit. If you require service, contact your customer service.

Please have the following information available for all service calls:

1. Model Number

2. Serial Number

3. Date and Place of Purchase

4 Operator's Manual

IMPORTANT SAFETY INSTRUCTIONS

WARNING: When using this product, basic precautions should always be observed, including the following:

READ ALL SAFETY WARNINGS BEFORE USING PRESSURE WASHER

POTENTIAL CONSEQUENCE

PREVENTION

Serious injury or death could occur if

the pressure washer is not properly

grounded. Your pressure washer

is powered by electricity and may

cause electric shock or electrocution

if not used properly.

Electrical shock may occur from

electrical cord.

Electrical shock may occur if

pressure washer is not operated

properly.

Serious injury or death may occur if

electrical repairs are attempted by

unqualied persons.

This product must be grounded. Make sure

the pressure washer is equipped with a GFCI

built into the power supply cord. If this is not

available, the pressure washer must be plugged

into a receptacle that is protected by a GFCI.

Disconnect when not in use.

If your unit is equipped with a GFCI, DO

NOT drop the GFCI as damage could

result. If the GFCI is accidentally dropped,

be certain to test the GFCI before using

to ensure it is working properly. (Follow

instructions on GFCI for test procedures.)

Always be certain the unit is receiving proper

voltage. Before plugging the unit into a

compatible power source, be certain the

switch is in the "OFF" position. Disconnect

when not in use.

Do not modify the electrical plug. If it will not

t the outlet, have a proper outlet installed by

a qualied electrician. Do not use any type

of adapter.

Check power cord for signs of crushing, cutting

or heat damage. If replacement of plug or

cord is needed, use only identical replacement

parts.

Do not use extension cords with this pressure

washer.

Keep all connections dry and off the ground.

Do not allow electrical cords to lay in water or

in such a position where water could come

in contact with them. Do not touch plug with

wet hands.

Do not pull on the electrical cord to disconnect

from the outlet.

DO NOT direct spray on or into electrical

installations of any kind! This includes electrical

outlets, light bulbs, fuse boxes, transformers,

the unit itself, etc.

DO NOT allow metal components of the

pressure washer to come in contact with live

electrical components.

Never operate the pressure washer with safety

guards/covers removed or damaged.

Any electrical wiring or repairs performed on this

pressure washer should be done by Authorized

Service Personnel in accordance with National

and Local electrical codes.

Before opening any electrical enclosure, always

shut off the pressure washer, relieve pressure

and unplug the pressure washer from the power

source. Allow the pressure washer to cool

down. Never assume the pressure washer is

safe to work on just because it is not operating.

It could restart at any time! Service in a clean,

dry, at area.

RISK OF

ELECTRIC SHOCK

OR

ELECTROCUTION

HAZARD

Operator's Manual 5

POTENTIAL CONSEQUENCE

PREVENTION

IMPORTANT SAFETY INSTRUCTIONS

READ ALL SAFETY WARNINGS BEFORE USING PRESSURE WASHER

RISK OF

EXPLOSION OR FIRE

Serious injury or death may occur

from normal sparks in the multiple

ignition sources or burner exhaust.

Serious injury or death may occur as

a result of improper fueling.

Serious injury or death may occur

if system safety's are not properly

maintained.

Always operate pressure washer in a well

ventilated area free of ammable vapors,

combustible dust, gases or other combustible

materials.

Do not store the pressure washer near an

open ame or any equipment such as a stove,

furnace, water heater, etc., which utilizes a pilot

light or sparking device.

Do not use this pressure washer to spray

ammable material!

Do not smoke while lling burner fuel tank.

Never ll the burner fuel tank while the pressure

washer is running or hot. Allow to cool two

minutes before refueling.

Do not refuel in a poorly ventilated area.

Always refuel slowly to avoid the possibility of

spilled fuel which may cause a risk of re.

Burner Fuel Tank:

Use No. 1 or No. 2 fuel oil/diesel or

kerosene.

Do not use gasoline, crankcase drainings or

oil containing gasoline or solvents.

Do not operate the unit if fuel is spilled. Wipe

the pressure washer clean and move it away

from the spill. Avoid creating any ignition until

the fuel has evaporated.

This pressure washer has a Safety Relief

device which should never be altered, modied,

removed or made inoperative. If the device

fails, replace immediately with only genuine

manufacturer replacement part.

HAZARD

Serious injury or death may occur

from inhaling burner exhaust or

dangerous vapors.

Never operate this pressure washer in an

enclosed area. Always make certain there

is adequate ventilation (fresh outside air) for

breathing and combustion. This will prevent

the build up of dangerous carbon monoxide

gases. Beware of poorly ventilated areas, or

areas with exhaust fans which can cause poor

air exchange.

Follow all safety instructions provided with the

materials you are spraying. Use of a respirator

may be required when working with some

materials. Do not use this pressure washer

to dispense hazardous detergents.

RISK OF

ASPHYXIATION

6 Operator's Manual

RISK OF BURNS

RISK FROM MOVING PARTS

Serious injury may occur from touching

the heat exchanger. This area can

remain hot for some time after the

pressure washer is shutdown.

Serious injury may occur from a

pressure washer malfunction or

exploding accessories if incorrect

system components, attachments or

accessories are used.

Serious injury or death may occur

if attempting to start the pressure

washer when the unit pumping system

is frozen.

Serious injury may occur to the

operator from moving parts on the

pressure washer.

Never make adjustments to the factory set

pressures.

Never exceed manufacturers maximum allowable

pressure rating of attachments.

Do not allow any hoses to make contact with heat

exchanger to prevent the possibility of bursting.

Avoid dragging the hoses over abrasive surfaces

such as cement.

Use only manufacturer recommended repair parts

for your pressure washer.

In freezing temperatures, the unit must always be

warm enough to ensure there is no ice formation

in the pump. Do not start the pressure washer if

it has been transported in an open or underheated

vehicle without rst allowing the unit pumping

system to thaw.

RISK OF BURSTING

Do not operate the unit without all protective

covers in place.

Follow the maintenance instructions specied in

the manual.

Never make adjustments to the unit while it is

connected to the power source.

Never allow any part of your body to contact the

heat exchanger.

Do not leave unit unattended after shutdown until

it is completely cooled down as described in the

"SHUTDOWN" procedures listed on page 18 of

this manual.

POTENTIAL CONSEQUENCE

PREVENTION

IMPORTANT SAFETY INSTRUCTIONS

READ ALL SAFETY WARNINGS BEFORE USING PRESSURE WASHER

Serious injury or death could occur

from high pressure spray penetrating

the skin.

Keep clear of nozzle and spray! Never put your hand,

ngers or body directly over the spray nozzle.

Never point the high pressure discharge spray at

yourself or anyone else.

This product is to be used only by trained operators.

Close supervision is necessary when used near

children.

Always keep operating area clear of all persons.

DO NOT allow children to operate this unit.

SEEK EMERGENCY MEDICAL CARE if the spray

appears to have penetrated the skin! DO NOT

TREAT AS A SIMPLE CUT!!

High pressure hoses and fuel lines should be

inspected daily for signs of wear. If evidence of

failure exists, promptly replace all suspect hoses

and fuel lines to prevent the possibility of injury

from the high pressure spray. If a hose or tting is

leaking, NEVER PLACE YOUR HAND DIRECTLY

ON THE LEAK.

NEVER operate the gun with the trigger wired in

the open position. To prevent accidental discharge,

the trigger gun should be securely locked when not

in use.

Before removing the spray nozzle or servicing the

unit, ALWAYS shut off the unit and trigger the gun

to release trapped pressure. (Even after you shut

off the unit, there is high pressure water left in the

pump, hose and gun until you release it by triggering

the gun.)

RISK OF INJECTION

OR

SEVERE CUTTING INJURY

HAZARD

Operator's Manual 7

RISK OF BODILY INJURY

IMPORTANT SAFETY INSTRUCTIONS

READ ALL SAFETY WARNINGS BEFORE USING PRESSURE WASHER

Serious injury or death may occur

from detergents contacting the skin.

Serious injury can occur from loose

debris being propelled at a high speed

from the spray gun.

Injury may occur if the operator loses

his balance caused by the thrust of

water traveling through the spray

nozzle.

Injury may occur from the pressure

washer.

SEEK EMERGENCY MEDICAL CARE if you are

using cleaning agents and the spray appears to

have penetrated the skin! DO NOT TREAT AS

A SIMPLE CUT! Be prepared to tell a physician

exactly what kind of detergents you were using by

reading the Material Safety Data Sheet (MSDS)

provided with your detergent.

Never use any solvents or highly corrosive detergents

or acid type cleaners with this pressure washer.

Protective equipment such as rubber suits, gloves

and respirators are advisable, especially when using

cleaning detergents.

Keep all detergents out of the reach of children!

ALWAYS wear protective goggles when operating

the unit to shield the eyes from ying debris and

detergents.

DO NOT direct spray toward fragile materials such

as glass because shattering could occur.

This pressure washer is equipped with an Auto

start/stop feature, the unit will shutdown until

the gun is triggered. To prevent accidental high

pressure discharge, do not leave unit unattended

while in this mode.

Stay alert-watch what you are doing. Do not operate

the unit when fatigued or under the inuence of

alcohol or drugs.

NEVER squeeze the trigger unless securely

braced.

DO NOT overreach or stand on unstable support.

Wet surfaces can be slippery, wear protective foot

gear and keep good footing and balance at all

times.

NEVER trigger the gun while on a ladder or roof.

ALWAYS hold on rmly to the gun/lance assembly

when starting and operating the unit. Failure to do so

can cause the lance to fall and whip dangerously.

Know how to stop the pressure washer and bleed

pressures quickly. Be thoroughly familiar with

controls.

DO NOT leave pressurized unit unattended. Shut off

the pressure washer and release trapped pressure

before leaving.

DO NOT operate the unit if you see any fuel, oil or

water leaks from the machine. DO NOT resume

operation until the unit has been inspected and

repaired by a qualied service person.

Place unit in a clean, dry, at area for servicing.

Before servicing the unit: turn the unit off, relieve

the water pressure from the trigger gun, and allow

the unit to cool down. Service in clean, dry, at area.

Engage the brake to prevent unit from moving.

Do not move the unit by pulling on the hose.

POTENTIAL CONSEQUENCE

PREVENTION

!SAVE THESE INSTRUCTIONS!

HAZARD

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Operator's Manual 9

FEATURES LISTING

1. Flat Free Wheels

2. Brake

3. Access Panel

4. Wand Holder

5. Water Inlet

6. Water Float Tank

7. Push/Pull Handle w/Rubber Grip

8. Stack Adapter Kit (Optional)

9. Heat Exchanger Exhaust

10. Burner Air Adjustment

11. Fuel Filter/Water Separator

12. Protective Cage for Fuel Tank & Burner

13. Pump Motor

14. High Pressure Pump

15. Pressure Switch-Burner Control

16. Unloader

17. Water Outlet

18. Safety Relief Valve

19. Detergent Strainer

20. Decal-Data Plate

21. Power Cord (w/GFCI on 1002/1003 & 2004-1E2G)

22. Burner Fuel Tank

23. Control Panel

24. Switch-Pump

25. Switch-Burner

26. Switch-Main

27. Adjustable Thermostat

28. Water Strainer

29. Detergent Metering Valve

30. High Pressure Hose

31. Trigger Gun

32. Trigger Safety Lock

33. Insulated Lance

34. Adjustable Pressure Dual Lance

35. High Pressure Nozzle

SPECIFIC UNIT INFORMATION

FRAME: Solid steel axles, push/pull handle with rubber grip.

PORTABILITY: Four pneumatic tires for easy mobility.

FINISH: Powder coated chassis with stainless steel heat exchanger.

HIGH PRESSURE HOSE: 3/8" x 50'.

TRIGGER GUN ASSEMBLY: Trigger controlled, safety lockoff,

insulated lance.

DUAL LANCE: Insulated, with adjustable pressure.

10 Operator's Manual

SETUP:

1. This unit should only be placed on a level surface to ensure proper lubrication

for the water pump while operating. NEVER spray water directly on the

unit.

2. Do not use unit in an area:

a. with insufcient ventilation.

b. where there is a combustible cealing, unless suitable stack venting is

installed.

c. where there is evidence of oil or fuel leaks.

d. where ammable gas vapors may be present.

3. Be certain to engage the brake to prevent the unit from moving while

operating. Allow sufcient clearances around unit for accessibility.

4. Do not allow the unit to be exposed to rain, snow or freezing temperatures.

If any part of the unit becomes frozen, excessive pressure may build up in

the unit which could cause it to burst resulting in possible serious injury to

the operator or bystanders.

5. Pump oil level should be checked before each use. Make certain the oil is

on the "Full" mark on the dipstick or in the center of the oil sight glass. If

the level appears to be low, ll with SAE20 or 30 non-detergent pump oil.

ATTIRE:

Proper attire is essential to your safety. It is advised to utilize whatever means

necessary to protect eyes, ears, and skin. Additional safety attire (such as

respiratory mask) may be required when using detergent cleaning agents with

this washer.

OPTIONAL STACK ADAPTER – VENTILATION INSTRUCTIONS

1. Installation of this unit, in an indoor or enclosed environment, should be

performed by a qualied HVAC technician. Additionally, venting must

conform to all local, state, and federal codes. Refer to NFPA 31 and CAN/

CSA B139-M91, where applicable.

2. Exhaust gases must not be vented into a wall, a ceiling, or a concealed

space of a building.

3. 8” ue pipe must be used to match the size of the stack adapter accessory.

The ue pipe should be kept as short as possible and be installed so that it

has a continuous rise to the chimney. Elbows must be kept to an absolute

minimum to maintain the forced air draft in the system and ensure good

burn quality.

4. If the unit is being installed in an enclosed room, an adequate air supply

must be provided to burner by installing openings near the oor. These

openings should be at least one square inch per 1000 BTU input of the

machine. Also, a ventilation opening must be installed near the ceiling.

This opening should be at least the same size as the supply opening near

the oor. Refer to NFPA 31 and CAN/CSA B139-M91, where applicable.

5. If the burner is located in a tightly constructed building where there is

inadequate outside air inltration, outside combustion air must be supplied by

some other means. One method to accomplish this is through a permanent

opening, or openings, in an exterior wall. The total free area of the opening(s)

must not be less than one square inch per 5,000 BTU input. All appliances

must be taken into consideration. Refer to NFPA 31 and CAN/CSA B139-

M91, where applicable.

INSTALLATION & PREPARATION

WARNING

RISK OF ASPHYXIATION!

USE THIS PRODUCT ONLY IN

WELL VENTILATED AREAS! THE

EXHAUST CONTAINS CARBON

MONOXIDE, A POISONOUS,

ODORLESS AND INVISIBLE

GAS. BREATHING THIS GAS

CAN CAUSE SERIOUS INJURY,

ILLNESS & POSSIBLE DEATH.

DANGER

RISK OF EXPLOSION OR FIRE!

DO NOT PLACE UNIT IN AN

AREA WHERE FLAMMABLE

GAS VAPORS MAY BE PRESENT.

A SPARK COULD CAUSE AN

EXPLOSION OR FIRE!

RISK OF UNIT BURSTING!

DO NOT STORE/OPERATE UNIT

IN FREEZING ENVIRONMENTS!

Operator's Manual 11

WARNING

RISK OF EXPLOSION OR FIRE!

ALWAYS STORE FUEL AWAY

FROM THE WASHER WHILE THE

UNIT IS RUNNING OR HOT.

INSTALLATION & PREPARATION

POWER CORD CONNECTION:

1. Make certain both switch are in the "OFF" position.

2. Ensure electrical supply is identical to the specications listed on the

pressure washer data plate.

3. GROUNDING INSTRUCTIONS: This product must be grounded. If

it should malfunction or breakdown, grounding provides a path of

least resistance for electric current to reduce the risk of electric shock.

This product is equipped with a cord having an equipment-grounding

conductor. The plug must be plugged into an appropriate outlet that is

properly installed and grounded in accordance with all local codes and

ordinances.

4. DANGER: Improper connection of the equipment-grounding conductor

can result in a risk of electrocution. Check with a qualied electrician or

service personnel if you are in doubt as to whether the outlet is properly

grounded. Do not modify the plug - if it will not t the outlet, have a proper

outlet installed by a qualied electrician. Do not use any type of adaptor

with this product.

5. GROUND FAULT CIRCUIT INTERRUPTER PROTECTION:

a. SINGLE PHASE: If this pressure washer is provided with a Ground

Fault Circuit Interrupter (GFCI) built into the plug or the power supply

cord, test the GFCI each time it is plugged into an outlet according

to instructions on the GFCI. DO NOT use the pressure washer if

the test fails! The GFCI provides additional protection from the risk

of electric shock. Should replacement of the plug or cord become

necessary, use only identical replacement parts that include GFCI

protection.

b. SINGLE PHASE: If this pressure washer is not provided with a GFCI,

this pressure washer should only be connected to a receptacle that

is protected by a Ground Fault Circuit Interrupter (GFCI) to comply

with the National Electric Code (NFPA 70) and to provide additional

protection from the risk of electric shock.

c. THREE PHASE: These pressure washers are not provided with

GFCI protection.

6. EXTENSION CORDS: THE MANUFACTURER DOES NOT

RECOMMEND THE USE OF EXTENSION CORDS! If use of an

extension cord is unavoidable, it must be plugged into a GFCI found in

circuit boxes or protected receptacles. When using an extension cord,

consult a qualied electrician to determine the proper wire gauge needed

for the length of the extension cord.

SINGLE PHASE: Use only 3-wire extension cords that have 3-prong

grounding-type plugs and 3-pole cord connectors that accept the plug

from the product.

THREE PHASE: Use only 4 wire extension cords that have 4-prong grounding

type plugs and 4-pole cord connectors that accept the plug from the

product.

Use only extension cords that are intended for outdoor use. These

extension cords are identied by a marking "Acceptable for use with

outdoor appliances; store indoors while not in use." Use only extension

cords having an electrical rating not less than the rating of the product.

Do not use damaged extension cords. Examine extension cord before

using and replace if damaged. Do not abuse extension cord and do

not pull on any cord to disconnect. Keep cord away from heat and

sharp edges. Always connect or disconnect the extension cord from

the receptacle before connecting or disconnecting the product from the

extension cord.

7. Ensure the area between the pressure washer cord and outlet is kept

dry.

8. Insert the male plug into a grounded AC outlet. DO NOT use an adapter

OR remove the grounding plug!!

BURNER FUEL TANK:

1. Review "Risk of Explosion or Fire" pg. 5, before fueling.

2. Locate the Safety Decals on your unit and heed their warnings.

3. Fill the burner fuel tank with good quality, clean No. 1 or No. 2 fuel oil/

diesel or kerosene. Do not use gasoline!

DANGER

RISK OF ELECTROCUTION!

THIS UNIT MUST BE CONNECTED

TO A PROPERLY GROUNDED

OUTLET. DO NOT USE AN

ADAPTER OR REMOVE THE

THIRD GROUNDING PRONG.

WARNING

RISK OF ELECTROCUTION!

TO REDUCE THE RISK OF

ELECTROCUTION, KEEP ALL

CONNECTIONS DRY AND OFF

THE GROUND. DO NOT TOUCH

PLUG WITH WET HANDS.

DANGER

RISK OF FIRE!

-DO NOT SMOKE WHILE

FUELING!

-DO NOT FILL THE FUEL TANK

WHILE UNIT IS RUNNING OR

HOT. ALLOW UNIT TO COOL

FOR TWO MINUTES BEFORE

REFUELING.

-DO NOT FILL FUEL TANK TO

POINT OF OVERFLOWING.

12 Operator's Manual

INSTALLATION & PREPARATION

ADJUSTABLE PRESSURE DUAL LANCE:

This unit features an Adjustable Pressure Dual Lance which allows the user to

select a high or low pressure "fan" spray. Simply rotate the adjustable grip on

the dual lance to achieve the desired pressure selection.

1. Selection of high pressure can be achieved by turning the adjustable grip

on the Dual Lance assembly counterclockwise as shown in the gure

below.

2. Selection of low pressure can be achieved by turning the adjustable grip on

the Dual Lance clockwise as shown in the gure below.

DUAL LANCE CONNECTION:

1. Be certain the trigger gun is locked in the "OFF" position.

2. Connect the dual lance assembly to the trigger gun assembly at this time (if

applicable). Be certain the connection is securely tightened.

WARNING

RISK OF INJECTION CAUSING

SEVERE INJURY!

-THE TRIGGER GUN SHOULD

ALWAYS BE LOCKED IN THE OFF

POSITION WHEN NOT IN USE!

-NEVER LOOK DIRECTLY AT

THE NOZZLE UNLESS IT IS

DISCONNECTED FROM THE

TRIGGER GUN/DUAL LANCE

ASSEMBLY!

A

WATER SUPPLY:

1. Select a water supply hose which is a quality grade of garden hose measuring

at least 3/4" ID and no longer than 50 feet.

2. Ensure the water strainers (A) are clean and free of any obstructions.

Periodic cleaning of the water strainer will help prevent pump problems.

As a strainer becomes obstructed, it restricts proper ow of water to the

pump. This can result in cavitation which will cause premature failure of

pump packings. Remove strainer screens (A), clean or replace.

3. Connect one end of the water supply hose to the water inlet of the unit.

Connect the other end of the hose to your pressurized water supply.

NOTE: If there is a high mineral content in your water, it is recommended that

a water softener be used to prevent the possibility of excessive scale

build up inside the heat exchanger coil.

4. Follow the incoming water requirements listed below:

a. Water pressure must be between a minimum of 20 pounds per square

inch (PSI) and a maximum of 125 PSI.

b. Incoming GPM must be approximately one gallon more than the outgoing

GPM stated on the pressure washer nameplate. (You can check GPM

by timing how long it takes to ll a 5 gallon container.)

c. Incoming water temperature must not exceed 125°F. Excessive pump

damage may result if the water temperature exceeds this acceptable

level.

5. Never allow the unit to operate without the incoming water line attached and

the water supply completely turned on.

UNLOADER:

The unloader has been preset at the factory.

Operator's Manual 13

INSTALLATION & PREPARATION

END OF PREPARATION INSTRUCTIONS

THERMAL RELIEF VALVE:

To ensure the water temperature does not exceed acceptable levels, never allow

the pressure washer to operate in the bypass mode (with the unit running and

the trigger closed) for more than ve minutes.

A "thermal relief valve" has been added to this unit to protect the pump. This valve

will open and release water if the water temperature in the pump has exceeded

140° F. This will allow fresh, cool water to enter the system, therefore preventing

premature failure of pump packings.

PRE-START INSPECTION PROCEDURES:

Before starting the unit, perform the following procedures:

1. Inspect the electrical cords for cuts. If a cut is found, DO NOT TOUCH OR

USE CORD! Replace cord before starting unit.

2. Check the oil level in the pump.

3. Inspect the water inlet strainer. Clean or replace if necessary. See "Water

Supply", #2, pg 12.

4. Check all hose connections to ensure they are securely tightened.

5. Inspect for system water leaks, oil leaks and fuel leaks. If a fuel leak is

found, DO NOT START UNIT! See "Risk of Explosion or Fire", pg. 5. Be

sure that all damaged parts are replaced and that the mechanical problems

are corrected prior to operation of the unit. If you require service, contact

Customer Service.

6. Inspect high pressure hoses for kinking, cuts and leaks. If a cut or leak

is found, DO NOT USE HOSE! Replace hose before starting unit. See

"Risk of Injection or Severe Cutting Injury", pg. 6. Be sure that all damaged

parts are replaced and that the mechanical problems are corrected prior to

operation of the unit. If you require service, contact Customer Service.

WARNING

THE FOLLOWING PAGES CONTAIN OPERATING AND

MAINTENANCE INSTRUCTIONS.

DO NOT ATTEMPT TO OPERATE THIS PRESSURE

WASHER UNTIL YOU HAVE READ AND UNDERSTOOD

ALL SAFETY PRECAUTIONS AND INSTRUCTIONS

LISTED IN THIS MANUAL.

INCORRECT OPERATION OF THIS UNIT CAN CAUSE

SERIOUS INJURY!!

DO NOT ALTER OR MODIFY THIS EQUIPMENT

IN ANY MANNER!

14 Operator's Manual

CAUTION

RISK OF DAMAGE.

DO NOT ALLOW SPRAY PATTERN

TO REMAIN ON A FIXED AREA

FOR AN EXTENDED PERIOD OF

TIME. POSSIBLE DAMAGE MAY

OCCUR TO THE AREA.

DANGER

RISK OF INJECTION CAUSING

SEVERE INJURY!

-KEEP CLEAR OF NOZZLE! NEVER

PLACE HAND OR FINGERS IN

FRONT OF NOZZLE!

-DO NOT DIRECT DISCHARGE

STREAM AT PEOPLE OR PETS!

-THIS PRODUCT IS TO BE

USED ONLY BY TRAINED

OPERATORS.

-AUTO START/STOP FEATURE

WILL SHUTDOWN THE

PRESSURE WASHER UNTIL GUN

IS TRIGGERED. TO PREVENT

ACCIDENTAL HIGH PRESSURE

DISCHARGE, DO NOT LEAVE

UNIT UNATTENDED WHILE IN

THIS MODE.

OPERATING INSTRUCTIONS

FLUSHING THE SYSTEM:

This unit has a steel coil which, after setting, will cause the water remaining in

the coil from the previous usage to turn brown or black. This water must be

ushed from the system before start-up. This procedure should be performed

without the high pressure hose, gun and dual lance assembly installed.

1. Turn on the water supply.

2. Move the pump switch to the "ON" position. Low pressure water will begin

owing from the water outlet. This allows the unit to ush any particles from

the system. The unit is ushed when the water is clear.

3. Once the system is ushed, move the pump switch to the "OFF" position

and connect the high pressure hose to the water outlet of the unit.

4. Connect the trigger gun and dual lance assembly to the high

pressure hose.

START-UP/COLD WATER OPERATION:

1. Refer to the "Safety Warnings" pgs. 4-7 before starting the unit.

2. Locate the Safety Decals on your unit and heed their warnings.

3. Ensure that the switch is in the "OFF" position.

4. Pointing the trigger gun in a safe direction, unlock the trigger gun and

squeeze the trigger. Brace yourself for possible gun kickback when the

pump starts.

5. Move power switch to the "ON" position.

6. Move the pump switch to the "ON" position.

7. Once the unit has started, perform the following procedures with the gun

open:

a. Inspect for system water leaks, oil leaks and fuel leaks.

If a leak is found, TURN UNIT OFF IMMEDIATELY! Be sure that all

damaged parts are replaced and that the mechanical problems are

corrected prior to operation of the unit. If you require service, contact

Customer Service.

b. Inspect high pressure hoses for kinking, cuts and leaks.

If a cut or leak is found, DO NOT TOUCH HOSE AT LEAK!!! TURN UNIT

OFF IMMEDIATELY! Replace hose before starting the unit. See "Risk

of Injection or Severe Cutting Injury" pg. 6. Be sure that all damaged

parts are replaced and that the mechanical problems are corrected

prior to operation of the unit. If you require service, contact Customer

Service.

8. At this point, the unit is operating as a cold water pressure washer. Trigger

the gun several times and try adjusting the water pressure by rotating the

grip on the dual lance. NEVER place hand or ngers in front of the nozzle

or look directly into the nozzle! High pressure water creates a risk of severe

injury!

9. Do not allow unit to operate in bypass mode (with trigger closed) for more

than ve minutes without triggering the gun. Failure to follow this simple

rule can cause premature failure of pump packings, resulting in costly pump

repair.

NOTE: This unit may be equipped with an Auto Start/Stop feature, the pressure

washer will shutdown if the gun is not triggered after a designated

amount of time. The pressure washer will start again once the gun

is triggered. The Auto Start/Stop feature is preset at the factory for

shutdown at 90 seconds. It can be adjusted by an Authorized Service

Technician to shutdown from no usage after a minimum of 3 seconds

to a maximum of 5 minutes.

10. Your pressure washer can deliver high pressure spray and a variety of

spray patterns using cold water. If you wish to use the Hot Water, Steam

application or Cleaning with Detergents, observe the following procedures.

HOT WATER OPERATION:

1. Follow the steps 1-9 outlined for Start-up / Cold Water Operation.

2. Move the burner switch to the “ON” position and the adjustable thermostat

clockwise to the desired setting.

3. Recheck the system for fuel leaks. If a fuel leak is found, TURN UNIT OFF

IMMEDIATELY! See “Risk of Explosion or Fire”, pg. 5.

NOTE: Upon initial start-up, water will begin turning hot in approximately 20

seconds and will reach maximum temperature in approximately 2-1/2

minutes providing the trigger remains squeezed. The burner will not

re when the trigger is released.

At this point, the unit will operate as a hot water pressure washer. Be extremely

cautious when adjusting the pressure and controlling the trigger gun/dual lance

assembly to avoid the possibility of burns.

WARNING

RISK OF BURN!

THE WATER TEMPERATURE

COULD BECOME VERY HOT

DURING HOT WATER/STEAM

OPERATION. BE CAUTIOUS

WHEN ADJUSTING PRESSURE

OR CONTROLLING THE TRIGGER

GUN/DUAL LANCE ASSEMBLY.

CAUTION

RISK OF UNIT DAMAGE.

BE CERTAIN THE HOSE, GUN

& DUAL LANCE ASSY. ARE

NOT CONNECTED TO THE

UNIT WHILE FLUSHING THE

SYSTEM. FLUSHING ALLOWS

MINERAL DEPOSITS TO BE

RELEASED FROM THE SYSTEM

WHICH WOULD OBSTRUCT

OR DAMAGE THE GUN AND

NOZZLE ASSEMBLY RESULTING

IN COSTLY REPAIRS.

Operator's Manual 15

OPERATING INSTRUCTIONS

WARNING

RISK OF BURN!

THE WATER TEMPERATURE

COULD BECOME VERY HOT

DURING HOT WATER/STEAM

OPERATION. BE CAUTIOUS

WHEN ADJUSTING PRESSURE

OR CONTROLLING THE TRIGGER

GUN/LANCE ASSEMBLY.

TIME DELAY SHUTDOWN OR AUTO START/STOP CHOICE (HHS ONLY):

This unit is equipped with Time Delay Shutdown and Auto Start/Stop. To

switch between Auto Start/Stop and Time Delay Shutdown, see below.

BLK / 104

From Wiring Diagram

Time Delay Shutdown

Auto Start/Stop

250° STEAM OPTION (HX-0172, HX-0174 AND HX-0176):

1. Install Steam Nozzle.

2. Follow steps 1-9 of Start-up / Cold-Water Operation.

3. Recheck the system for water leaks and fuel leaks. If a leak is found, TURN

UNIT OFF IMMEDIATELY!

4. Turn adjustable thermostat clockwise to maximum setting. If a lower

thermostat setting is desired, it is normal for the burner to cycle (re

intermittently) while spraying. (Note: Adjustable thermostat is a high limit

device and does not regulate temperature.)

NOTE: Upon initial start-up, water will begin turning hot in approximately 20

seconds and will reach steam temperature in approximately 5 minutes

providing the trigger remains squeezed. The burner will not re when

the trigger is released.

At this point, the unit will operate as a steam pressure washer. Be extremely

cautious when adjusting the pressure and controlling the trigger gun/dual lance

assembly to avoid the possibility of burns.

OPTIONAL STEAM OPERATION (HHS ONLY):

16 Operator's Manual

CLEANING WITH DETERGENTS:

NOTE: This feature is designed for use with mild detergents only. Since the

cleaning solution travels through various parts of the pressure washer,

do not use corrosives as they will cause extensive damage as well as

pose a considerable safety hazard.

1. Refer to "Risk of Bodily Injury/Detergents" pg. 7. Be certain to wear protective

safety attire as stated on pg. 10.

2. Prepare detergent solution according to label directions. (Never pump acids,

alkalines, abrasive uids or solvents through the unit. Due to the unknown

and often corrosive characteristics of many detergents commonly used in

the pressure washer cleaning industry, it is recommended to use only mild

detergents with this unit.)

3. Fully immerse the strainer end of the clear vinyl detergent hose into the

detergent solution.

4. Adjust the amount of detergent desired by turning the detergent metering

valve [shown at right] completely counterclockwise to set at maximum siphon

rate.

5. To apply solution; unlock the trigger gun and squeeze the trigger. In a few

moments a detergent/water mixture will exit the nozzle. Start spraying the

lower portion of the surface being cleaned and move up, using long overlapping

strokes. Applying from the bottom up helps avoid streaking. Allow to soak

briey. Avoid working on hot surfaces or in direct sunlight to minimize the

chances of the detergent drying, which may result in damaging surfaces.

Be certain to apply cleaning solution to a small section at a time.

6. To rinse; lock the trigger gun in the "OFF" position. Turn the detergent

metering valve to the "OFF" position. Unlock the trigger gun and spray. It

will take about 30 seconds to purge all detergent from the line. For best

rinsing results, start at the top and work down.

7. Siphon a gallon of water through the detergent injection system after each

use. This prevents the possibility of corrosion or detergent residue causing

mechanical problems during the next use.

OPERATING INSTRUCTIONS

--- HHB-303-0E1A MACHINES ONLY -- NOT CSA APPROVED

MACHINE!! ---

STEAM OPERATION:

1. Follow steps 1-7 of Start-up / Cold-Water Operation.

2. Move switch to burner position.

3. Recheck the system for water leaks and fuel leaks. If a leak is found,

TURN UNIT OFF IMMEDIATELY! See "Risk of Explosion or Fire, pg.

5)

NOTE: Upon initial start-up, water will begin turning hot in approximately

20 seconds and will reach steam temperature in approximately 5

minutes providing the trigger remains squeezed. The burner will

not re when the trigger is released.

At this point, the unit will operate as a steam pressure washer. Be extremely

cautious when adjusting the pressure and controlling the trigger gun/dual

lance assembly to avoid the possibility of burns.

Operator's Manual 17

DANGER

RISK OF INJECTION CAUSING

SEVERE INJURY!

-AUTO START/STOP FEATURE

WILL SHUTDOWN THE PRESSURE

WASHER UNTIL THE GUN IS

TRIGGERED. TOTAL SHUTDOWN

REQUIRES ALL THE SWITCHES

TO BE MOVED TO THE OFF

POSITION.

-TO PREVENT ACCIDENTAL HIGH

PRESSURE DISCHARGE, DO NOT

LEAVE UNIT UNATTENDED UNTIL

ALL THE SWITCHES ARE IN THE

OFF POSITION.

OPERATING INSTRUCTIONS

SHUTDOWN:

1. Move the burner switch to the "OFF" position. Pump will remain on.

2. Squeeze the trigger and discharge the water for a period of three minutes

to cool the heat exchanger and high pressure hose. (Insufcient cool

down period of the high pressure hose will cause excessive wear and

eventual rupturing of the hose.)

3. Move the switch to the "OFF" position. (Auto Start/Stop Option will shut

the unit down, but total shutdown requires switch to be moved to the

"OFF" position.)

4. Move power switch to "OFF" position for complete shutdown.

5. Turn off the water supply and trigger the gun momentarily to relieve

trapped pressure.

6. Disconnect and drain the high pressure hose, gun, and dual lance. Wipe

the unit clean store in a non-freezing environment.

STEAM - 250°F (HX-0172/HX-0174/HX-0176):

The 250°F steam option provides wet steam output from the unit. Using the

included steam nozzle, 250°F steam is obtained. The sizing of the steam

nozzle is critical to proper operation of the option.

OPTIONS (HHS ONLY):

18 Operator's Manual

MAINTENANCE CHART

PROCEDURE DAILY 3 MONTHS 6 MONTHS 9 MONTHS 12 MONTHS

Inspect electrical cord X

Test GFCI (according to instructions

on GFCI).

X

Check water pump oil level X

Oil leak visual inspection X

Fuel leak visual inspection X

Water leak visual inspection X

Hose visual inspection X

Water strainer inspection X

High pressure nozzle inspection X

Fuel lter/water sep. inspection X

Change water pump oil ** X X X X

Replace high pressure nozzle*** X X X X

Inspect belt X X X X

Check burner air adjustment X X X X

Test water pressure* X X X X

Test water temperature* X X X X

Replace fuel lter X X

Test fuel pressure* X

Delime coil**** X

Test voltage and amp draw* X

Inspect fuel pump lter* X

Check burner electrodes* X

Replace fuel nozzle* X

* Should be performed by an authorized service technician.

** The pump oil must be changed after the rst 50 hours of operation and every 500 hours or 3 months, whichever

comes rst.

*** High pressure nozzle should be replaced whenever pressure is less than 85%.

**** Scale build up will vary with mineral content in the water and amount of usage. Deliming can range from weekly

to yearly maintenance.

STORAGE & MAINTENANCE

Operator's Manual 19

STORAGE & MAINTENANCE

MAINTENANCE-DAILY:

INSPECT ELECTRICAL CORD: Detach unit from power source and

inspect electrical cords to ensure they are free of cuts. If a cut is

found, replace cord before operating unit.

TEST GFCI: If applicable, test the GFCI. Testing varies according to

the specic GFCI. Follow the instructions given on the GFCI for

correct procedures.

CHECK WATER PUMP OIL LEVEL: Make certain the oil is on the "FULL"

mark on the dipstick or in the center of the oil sight glass. If the oil

appears to be low, ll with SAE20 or 30 non-detergent pump oil.

OIL LEAK INSPECTION: If a leak is found, promptly eliminate any

leaks found in the pumping system. Be sure that all damaged parts

are replaced and that the mechanical problems are corrected prior

to operation of the unit. If you require service, contact Customer

Service.

FUEL LEAK INSPECTION: If a fuel leak is found, turn unit off immediately!

See "Risk of Explosion or Fire", pg. 5. Be sure that all damaged parts

are replaced and that the mechanical problems are corrected prior

to operation of the unit. If you require service, contact Customer

Service.

WATER LEAK INSPECTION: If a leak is found, promptly eliminate any

leaks found in the pumping system by removing suspect parts, applying

thread sealant to the threads and reinstalling. If using teon tape, be

certain no tape gets inside any plumbing to prevent the possibility of

a plugged spray nozzle. Be sure that all damaged parts are replaced

and that the mechanical problems are corrected prior to operation of

the unit. If you require service, contact Customer Service.

HOSE INSPECTION: Inspect high pressure hoses for kinking, cuts

and leaks. If a cut or leak is found, DO NOT USE HOSE! Replace

hose before starting unit. See "Risk of Injection or Severe Cutting

Injury", pg. 6. Be sure that all damaged parts are replaced and that

the mechanical problems are corrected prior to operation of the unit.

If you require service, contact Customer Service.

WATER STRAINER INSPECTION: Ensure the water strainers (A) are

clean and free of any obstructions. Periodic cleaning of the water

strainer will help prevent pump problems. As a strainer becomes

obstructed, it restricts proper ow of water to the pump. This can result

in cavitation which will cause premature failure of pump packings.

Remove strainer screens (A), clean or replace.

QUICK COUPLERS INSPECTION: There are o-ring seals inside the

couplers which will deteriorate. To replace, simply install a replacement

o-ring to correct the leak. (Additional o-rings can be purchased from

your dealer.)

HIGH PRESSURE NOZZLE: Inspect high pressure nozzle for wear or

obstructions. Clean or replace if necessary.

FUEL FILTER/WATER SEPARATOR: Inspect bowl on fuel lter/water

separator for water accumulation. If water exists, unscrew drain

valve on bowl to drain water, then close.

A

20 Operator's Manual

MAINTENANCE-EVERY 3 MONTHS:

CHANGE WATER PUMP OIL: Ensure unit is off and unplugged. Change

the pump oil after the rst 50 hours of operation. After initial change,

every 3 months or 500 hour intervals are recommended. If oil appears

dirty or milky, changes may be required in greater frequency. Use

SAE20 or 30 non-detergent pump oil and ll only to the center of the

oil sight glass. DO NOT overll.

REPLACE HIGH PRESSURE NOZZLE: Water ow through the spray

nozzle will erode the orice, making it larger, resulting in a pressure

loss. Nozzles should be replaced whenever pressure is less than

85% of the maximum. The frequency of replacement will depend

upon such variables as mineral content in the water and number of

hours the nozzle is used.

BELT INSPECTION: Ensure unit is off and unplugged. Open the access

panel by unscrewing the two side knobs that secure the panel in place.

Slide the motor/pump assembly out. Inspect the v-belt for wear and

tightness. If the v-belt needs to be replaced or tightened, follow the

procedures listed below.

Replacement:

1. Loosen the four pump mounting bolts (A).

2. Loosen the two alignment nuts approximately one inch on the

alignment bolts (B1 & B2).

3. Slide the pump toward the motor to loosen belts.

4. Remove and replace belt.

Tighten: (If v-belt was not replaced, you will need to loosen the nuts

on the alignment bolts B1 and B2 before proceeding.)

1. Tighten B2 alignment bolt. The pump will shift to the left until

there is tension on the belt. Then tighten B2 nut.

2. Tighten B1 alignment bolt, until sheaves are straight. (Use a

straightedge for alignment.)

3. Push on the v-belt to check belt deection for tension. There

should be 1/4" to 1/2" deection for correct tension.

4. If sheaves are straight and tension is correct, tighten B1 nut and

the four pump mounting bolts (A).

5. If tension is not correct, repeat steps 6 and 7 until correct alignment

and tension is achieved. Tighten the four mounting bolts (A) when

completed.

6. Loosen B2 nut, tighten B2 bolt, tighten B2 nut.

7. Loosen B1 nut, tighten B1 bolt, tighten B1 nut.

BURNER AIR ADJUSTMENT: The air shutter has been factory preset for

proper operation between sea level and 2000 feet elevation at standard

conditions (60°F ambient water and air temperatures). In colder

temperatures or higher altitudes, it may be necessary to adjust the

air supply to the combustion chamber. This adjustment will maximize

burner efciency and avoid inefcient operation or excessive sooting

of the heat exchanger coil. A smoke spot test is recommended during

any air shutter and band adjustment. If you do not have the equipment

to perform a smoke spot test, follow the procedures listed below.

1. The machine must be running and the burner ON.

2. Loosen the Locking Screw (#3 at left) on the shutter.

3. Check for smoke from the heat exchanger exhaust. If smoke is

not present, slowly close the Air Shutter (#1 at left) by moving the

dial counterclockwise to a lower number. Continue moving the

dial until smoke appears.

4. Record this setting.

5. Open Air Shutter (#1 at left) two increments. Example: If Air

Shutter was set at 2, move it to 4.

6. Slowly trigger the gun on and off. This will cause the burner to

turn on and off. Look for a smoke puff when the burner ignites.

7. Repeat steps 5 and 6 until a smoke puff is noticed. Record the

Air Shutter Setting.

8. The difference between the recorded settings in steps 4 and 7

is the combustion window. Set the dial 1/2 way between these

settings.

NOTE: If you are unable to detect a setting on either step 3 or 7, more or less

air may be needed to achieve a proper combustion window. Loosen

the Bolt (#4 at left) and open the Air Band (#2 at left) in 1/4" increments.

Repeat steps 3-8 until proper combustion window is achieved.

TEST WATER & FUEL PRESSURE: These procedures should be

performed by an authorized service technician.

TEST WATER TEMPERATURE: This procedure should be performed by

an authorized service technician.

STORAGE & MAINTENANCE

Operator's Manual 21

MAINTENANCE-EVERY 6 MONTHS:

REPLACE FUEL FILTER: Follow the instructions specied on the fuel lter

for correct procedures.

MAINTENANCE-EVERY 12 MONTHS:

DELIME COIL: A loss in pressure may signify that the coil needs to be

delimed. Do this procedure on a periodic basis.

1. Mix non-caustic deliming powder/solution in oat tank according to

package directions.

2. Remove the nozzle from the wand. Place a nylon stocking over the

wand assembly to collect debris, then place the wand assembly into

the oat tank.

3. Turn the switch to the "Pump" position. Water will circulate throughout

the system and back into the oat tank. Allow circulation to continue

for 2-4 hours.

4. Turn the switch to the "Off" position. Drain and clean the oat tank.

Remove nylon stocking and clean wand assembly.

5. Flush the entire system with clean, fresh water, then replace nozzle

into wand assembly.

6. Dispose of deliming solution according to local, state and national

regulations.

TEST VOLTAGE & AMP DRAW: Use a volt meter and amp meter to test

the machine for correct voltage and amperage. If you do not have these

instruments or do not know how to use them, this procedure should be

performed by an authorized service technician.

INSPECT FUEL PUMP INTERNAL FILTER: This procedure should be

performed by an authorized service technician.

CHECK BURNER ELECTRODES: This procedure should be performed

by an authorized service technician.

REPLACE FUEL NOZZLE: This procedure should be performed by an

authorized service technician.

CLEAN FUEL PICKUP INLET SCREEN: This procedure should be performed

by an authorized service technician.

MAINTENANCE-SEASONAL:

WINTERIZING: For storage and transportation purposes in subfreezing ambient

temperatures, it will be necessary to winterize this unit. This unit must be

protected to the lowest incurred temperature for the following reasons:

1. If any part of the pumping system becomes frozen; excessive pressure

may build up in the unit which could cause the unit to burst resulting in

possible serious injury to the operator or bystanders.

2. The pumping system in this unit may be permanently damaged if frozen.

FREEZE DAMAGE IS NOT COVERED BY WARRANTY.

If you must store your unit in an area where the temperature may fall below

32°F, you can protect your unit by following one of the procedures listed

below.

AIR BLOWOUT:

1. Remove the nozzle from the wand assembly. Squeeze the trigger until

water ceases to exit the wand assembly.

2. Connect an air tting from an air hose to the strainer tting in the oat

tank.

3. Run compressed air into the system to remove all water from the

system.

ANTIFREEZE SOLUTION:

1. Pour a 50/50 mixture of antifreeze and water into the oat tank.

2. Place the detergent strainer into 100% antifreeze solution

3. Turn the switch to the "Pump" position. Allow antifreeze to siphon

throughout the system until antifreeze solution exits the outlet. (To

ensure the coil is winterized, antifreeze solution must exit the outlet.

Add more 50/50 mixture to the oat tank if necessary.)

STORAGE & MAINTENANCE

WARNING

RISK OF UNIT BURSTING.

DO NOT STORE / OPERATE

UNIT IN A FREEZING

ENVIRONMENT!

32˚F 0˚C

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Mi-T-M HHB Series, HHS Series Owner's manual

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